import java.io.IOException;
//实例1
public final class Person extends BaseClass implements java.io.Serializable {
    private String name;
    static final int age = 30;
    protected String address;
    public String message;

    //成员方法
    public String getName(){return name;}
    public void setName(String name){this.name = name;}
    static final int getAge(){return age;}
    private String getAddress(){return address;}
    private void silentMethod() throws IOException,NullPointerException{
        System.out.println("这是悄悄话");
    }

    public Person(){}
    private Person(String name){ this.name = name; }
    private Person(String name,String address,String message){ this.name = name; this.address = address; this.message = message; }

    @Override
    public String toString() {
        return "Person{" +
                "name='" + name + '\'' +
                ", address='" + address + '\'' +
                ", message='" + message + '\'' +
                '}';
    }
}
